Todd E Brandt e8bca479c3 PM / sleep: trace events for device PM callbacks ... Adds two trace events which supply the same info that initcall_debug provides, but via ftrace instead of dmesg. The existing initcall_debug calls require the pm_print_times_enabled var to be set (either via sysfs or via the kernel cmd line). The new trace events provide all the same info as the initcall_debug prints but with less overhead, and also with coverage of device prepare and complete device callbacks. These events replace the device_pm_report_time event (which has been removed). device_pm_callback_start is called first and provides the device and callback info. device_pm_callback_end is called after with the device name and error info. The time and pid are gathered from the trace data headers. Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2014-06-11 02:16:48 +02:00
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events	PM / sleep: trace events for device PM callbacks	2014-06-11 02:16:48 +02:00
define_trace.h	tracing: Add DEFINE_EVENT_FN() macro	2013-06-20 22:24:32 -07:00
ftrace.h	tracing: Fix anonymous unions in struct ftrace_event_call	2014-04-09 20:02:55 -04:00
syscall.h	tracing: Add missing syscall_metadata comment	2013-07-01 20:34:25 -04:00